Abracon recommends a symmetrical PCB layout with a solid ground plane, and the crystal should be placed as close as possible to the oscillator circuit. A minimum of 10 mils clearance around the crystal is recommended to prevent noise coupling.
To ensure reliable startup, Abracon recommends a power-on reset circuit, a slow power ramp-up, and a decoupling capacitor (e.g., 10nF) between the VCC and GND pins. Additionally, the oscillator circuit should be designed to minimize noise and EMI.
The APARM2504-C2GR is rated for operation from -40°C to +85°C. However, Abracon recommends derating the frequency tolerance and stability over the full temperature range to ensure reliable operation.
The APARM2504-C2GR is designed to withstand moderate vibration levels. However, for high-vibration environments, Abracon recommends using a crystal with a higher vibration tolerance, such as the APARM2504-C2GR-HV. Consult Abracon's application notes for vibration testing and guidelines.
Abracon recommends using ESD protection devices, such as TVS diodes or ESD arrays, on the PCB to protect the crystal from electrostatic discharge. Additionally, follow proper handling and storage procedures to prevent ESD damage.
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